From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965817AbXCVGEy (ORCPT ); Thu, 22 Mar 2007 02:04:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965820AbXCVGEG (ORCPT ); Thu, 22 Mar 2007 02:04:06 -0400 Received: from ozlabs.org ([203.10.76.45]:57911 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965823AbXCVGEC (ORCPT ); Thu, 22 Mar 2007 02:04:02 -0400 To: Linux Memory Management CC: From: Benjamin Herrenschmidt Date: Thu, 22 Mar 2007 17:01:26 +1100 Subject: [RFC/PATCH 10/15] get_unmapped_area handles MAP_FIXED in hugetlbfs In-Reply-To: <1174543217.531981.572863804039.qpush@grosgo> Message-Id: <20070322060300.BBB4ADE3EC@ozlabs.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Benjamin Herrenschmidt --- fs/hugetlbfs/inode.c | 6 ++++++ 1 file changed, 6 insertions(+) Index: linux-cell/fs/hugetlbfs/inode.c =================================================================== --- linux-cell.orig/fs/hugetlbfs/inode.c 2007-03-22 16:12:56.000000000 +1100 +++ linux-cell/fs/hugetlbfs/inode.c 2007-03-22 16:16:02.000000000 +1100 @@ -115,6 +115,12 @@ hugetlb_get_unmapped_area(struct file *f if (len > TASK_SIZE) return -ENOMEM; + if (flags & MAP_FIXED) { + if (prepare_hugepage_range(addr, len, pgoff)) + return -EINVAL; + return addr; + } + if (addr) { addr = ALIGN(addr, HPAGE_SIZE); vma = find_vma(mm, addr);